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Git 2.28 Release Notes
======================
Updates since v2.27
-------------------
Backward compatibility notes
* "feature.experimental" configuration variable is to let volunteers
easily opt into a set of newer features, which use of the v2
transport protocol is now a part of.
UI, Workflows & Features
* The commands in the "diff" family learned to honor "diff.relative"
configuration variable.
* The check in "git fsck" to ensure that the tree objects are sorted
still had corner cases it missed unsorted entries.
* The interface to redact sensitive information in the trace output
has been simplified.
Performance, Internal Implementation, Development Support etc.
* Code optimization for a common case.
(merge 8777616e4d an/merge-single-strategy-optim later to maint).
* We've adopted a convention that any on-stack structure can be
initialized to have zero values in all fields with "= { 0 }",
even when the first field happens to be a pointer, but sparse
complained that a null pointer should be spelled NULL for a long
time. Start using -Wno-universal-initializer option to squelch
it (the latest sparse has it on by default).
* "git log -L..." now takes advantage of the "which paths are touched
by this commit?" info stored in the commit-graph system.
* As FreeBSD is not the only platform whose regexp library reports
a REG_ILLSEQ error when fed invalid UTF-8, add logic to detect that
automatically and skip the affected tests.
* "git bugreport" learns to report what shell is in use.
* Support for GIT_CURL_VERBOSE has been rewritten in terms of
GIT_TRACE_CURL.
* Preliminary clean-ups around refs API, plus file format
specification documentation for the reftable backend.
* Workaround breakage in MSVC build, where "curl-config --cflags"
gives settings appropriate for GCC build.
Fixes since v2.27
-----------------
* The "--prepare-p4-only" option of "git p4" is supposed to stop
after replaying one changeset, but kept going (by mistake?)
* The error message from "git checkout -b foo -t bar baz" was
confusing.
* Some repositories in the wild have commits that record nonsense
committer timezone (e.g. rails.git); "git fast-import" learned an
option to pass these nonsense timestamps intact to allow recreating
existing repositories as-is.
(merge d42a2fb72f en/fast-import-looser-date later to maint).
* The command line completion script (in contrib/) tried to complete
"git stash -p" as if it were "git stash push -p", but it was too
aggressive and also affected "git stash show -p", which has been
corrected.
(merge fffd0cf520 vs/complete-stash-show-p-fix later to maint).
* On-the-wire protocol v2 easily falls into a deadlock between the
remote-curl helper and the fetch-pack process when the server side
prematurely throws an error and disconnects. The communication has
been updated to make it more robust.
* "git checkout -p" did not handle a newly added path at all.
(merge 2c8bd8471a js/checkout-p-new-file later to maint).
* The code to parse "git bisect start" command line was lax in
validating the arguments.
(merge 4d9005ff5d cb/bisect-helper-parser-fix later to maint).
* Reduce memory usage during "diff --quiet" in a worktree with too
many stat-unmatched paths.
(merge d2d7fbe129 jk/diff-memuse-optim-with-stat-unmatch later to maint).
* The reflog entries for "git clone" and "git fetch" did not
anonymize the URL they operated on.
(merge 46da295a77 js/reflog-anonymize-for-clone-and-fetch later to maint).
* The behaviour of "sparse-checkout" in the state "git clone
--no-checkout" left was changed accidentally in 2.27, which has
been corrected.
* Use of negative pathspec, while collecting paths including
untracked ones in the working tree, was broken.
* The same worktree directory must be registered only once, but
"git worktree move" allowed this invariant to be violated, which
has been corrected.
(merge 810382ed37 es/worktree-duplicate-paths later to maint).
* The effect of sparse checkout settings on submodules is documented.
(merge e7d7c73249 en/sparse-with-submodule-doc later to maint).
* Other code cleanup, docfix, build fix, etc.
(merge 2c31a7aa44 jx/pkt-line-doc-count-fix later to maint).
(merge d63ae31962 cb/t5608-cleanup later to maint).
(merge 788db145c7 dl/t-readme-spell-git-correctly later to maint).
(merge 45a87a83bb dl/python-2.7-is-the-floor-version later to maint).
(merge b75a219904 es/advertise-contribution-doc later to maint).
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